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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/libio/strfile.h
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.xz
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/libio/strfile.h')
-rw-r--r--REORG.TODO/libio/strfile.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/REORG.TODO/libio/strfile.h b/REORG.TODO/libio/strfile.h
new file mode 100644
index 0000000000..74bd4eb269
--- /dev/null
+++ b/REORG.TODO/libio/strfile.h
@@ -0,0 +1,85 @@
+/* Copyright (C) 1993-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.
+
+   As a special exception, if you link the code in this file with
+   files compiled with a GNU compiler to produce an executable,
+   that does not cause the resulting executable to be covered by
+   the GNU Lesser General Public License.  This exception does not
+   however invalidate any other reasons why the executable file
+   might be covered by the GNU Lesser General Public License.
+   This exception applies to code released by its copyright holders
+   in files containing the exception.  */
+
+#include <libio.h>
+#ifdef TODO
+Merge into  libio.h ?
+#endif
+
+typedef void *(*_IO_alloc_type) (_IO_size_t);
+typedef void (*_IO_free_type) (void*);
+
+struct _IO_str_fields
+{
+  _IO_alloc_type _allocate_buffer;
+  _IO_free_type _free_buffer;
+};
+
+/* This is needed for the Irix6 N32 ABI, which has a 64 bit off_t type,
+   but a 32 bit pointer type.  In this case, we get 4 bytes of padding
+   after the vtable pointer.  Putting them in a structure together solves
+   this problem.  */
+
+struct _IO_streambuf
+{
+  struct _IO_FILE _f;
+  const struct _IO_jump_t *vtable;
+};
+
+typedef struct _IO_strfile_
+{
+  struct _IO_streambuf _sbf;
+  struct _IO_str_fields _s;
+} _IO_strfile;
+
+/* dynamic: set when the array object is allocated (or reallocated)  as
+   necessary to hold a character sequence that can change in length. */
+#define _IO_STR_DYNAMIC(FP) ((FP)->_s._allocate_buffer != (_IO_alloc_type)0)
+
+/* frozen: set when the program has requested that the array object not
+   be altered, reallocated, or freed. */
+#define _IO_STR_FROZEN(FP) ((FP)->_f._IO_file_flags & _IO_USER_BUF)
+
+typedef struct
+{
+  _IO_strfile f;
+  /* This is used for the characters which do not fit in the buffer
+     provided by the user.  */
+  char overflow_buf[64];
+} _IO_strnfile;
+
+extern const struct _IO_jump_t _IO_strn_jumps attribute_hidden;
+
+
+typedef struct
+{
+  _IO_strfile f;
+  /* This is used for the characters which do not fit in the buffer
+     provided by the user.  */
+  wchar_t overflow_buf[64];
+} _IO_wstrnfile;
+
+extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden;